&lt;strong&gt;Phylogenetic reconstructions of the Hedwigiaceae reveal cryptic speciation and hybridisation in &lt;em&gt;Hedwigia&lt;/em&gt;&lt;/strong&gt;

Buchbender, Volker; Hespanhol, Helena; Krug, Michael; Sérgio, Cecı́lia; Séneca, Ana; Maul, Karola; Hedenäs, Lars; Quandt, Dietmar

doi:10.11646/bde.36.1.1

Cited by 24 publications

(23 citation statements)

References 32 publications

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“…Similarly, Trachybryum is nested within Homalothecium based on molecular data (Huttunen et al, 2008). Pseudobraunia was recovered as sister to Hedwigia by (Buchbender et al, 2014), and the authors of that study made a strong argument, based on morphological similarity between the two, that Pseudobraunia does not warrant recognition as a distinct genus. In an interpretation based on morphological characters without supporting molecular data, Bryocrumia , formerly considered a southern Appalachian endemic, has been expanded to include Glossadelphus , and now Bryocrumia is interpreted as comprising a single species that occurs in the southern Appalachians and in Asia and Africa (Buck, 2014).…”

Section: Discussionmentioning

confidence: 99%

Endemism in the moss flora of North America

Carter

Shaw

2016

American J of Botany

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Section: Discussionmentioning

confidence: 99%

Endemism in the moss flora of North America

Carter

Shaw

2016

American J of Botany

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“…Among bryophytes, many cryptic species ( sensu Bickford et al ., ) have been uncovered thanks to this methodology (e.g. Vanderpoorten et al ., ; Damayanti et al ., ; Medina et al ., , ; Buchbender et al ., ; Hedenäs et al ., ; Draper et al ., ; Heinrichs et al ., ). In these organisms, integrative taxonomy has been used mainly for the study of complexes in which a hidden diversity has been suspected, but for which no critical morphological analyses have been undertaken in recent times.…”

Section: Introductionmentioning

confidence: 99%

Integrative taxonomy sheds light on an old problem: theUlota crispacomplex (Orthotrichaceae, Musci)

et al. 2016

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The combined use of morphological and molecular analyses has been proven to be useful in resolving taxonomic complexes with hidden diversity. In bryology, however, integrative taxonomy has rarely been employed to revisit relevant old, unresolved problems. One of these classical controversies is whether the Ulota crispa complex comprises one or three species. To elucidate this, an exhaustive morphological revision, based on numerous herbarium and fresh specimens from most of the Holarctic areas in which U. crispa has been reported, and molecular analyses, using one nuclear (ITS2) and three plastid (trnG, trnL-trnF, atpB-rbcL) loci on a selection of representative specimens, have been performed. The results unambiguously point to the existence of three morphotypes, ascribable to the previously described Ulota crispa s.s., U. crispula and U. intermedia, which can be differentiated by an ample set of qualitative and quantitative morphological characters. A phylogenetic reconstruction based on molecular data is proposed, including samples of these morphotypes in a framework of another ten Ulota spp. and two Orthotrichum and two Zygodon spp. According to the results, the samples belonging to these morphotypes are placed in three independent and coherent monophyletic clades, indicating that they represent three closely related, but independent, species. The origin and development of the taxonomic debate around U. crispa and related taxa are discussed to illuminate the reasons for this historical confusion. The analysis of the geographical origin of the studied samples shows that all three species are widely distributed throughout the Northern Hemisphere, although with different ranges. Ulota crispula has an amphi-Atlantic range, whereas U. crispa and U. intermedia display broader disjunct ranges; only in Europe do the three species co-occur. A key to the three species and updated detailed descriptions are provided.

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“…detonsa (M. Howe) Paris to a species rank. Later Biasuso (2007) The first molecular-phylogenetic analysis of Hedwigia based on mitochondrial nad-5, plastid trnL-trnF and nuclear ITS1&2 markers (Buchbender et al, 2014) confirmed a separate status of H. stellata and H. ciliata var. striata (Wilson) Bruch & Schimp., so the latter taxon was raised to the species rank.…”

Section: Introductionmentioning

confidence: 99%

“…The same DNA regions as in the analyzis of Buchbender et al (2014) were used. It was shown that H. ciliata s. str.…”

Section: Introductionmentioning

confidence: 99%

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Further comments on the genus Hedwigia (Hedwigiaceae, Bryophyta) in Russia

Ignatova

Kuznetsova

Ignatov

2017

Arctoa, a jornal of bryology

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A new species from Asian Russia, Hedwigia kuzenevae sp. nova, is described based on integrative molecular and morphological study. It is similar to the recently described H. czernyadjevae in plant habit, highly recurved leaf margins and hair-point structure, but differs in multipapillose leaf cells. The latter character, as well as leaf margins recurved to the hair-point, correspond to H. ciliata; however, its hair-points are shorter, less strongly papillose, especially in distal part, and leaves are falcate-secund, contrary to the straight leaves of H. kuzenevae. Distribution area of H. kuzenevae includes Transbaikalia and Tukuringra Range in Amurskyaya Province; it is also known from few localities in Yakutia and Krasnoyarsk Territory. It often grows in areas with calcareous bedrocks. Another taxon, H. emodica var. echinata var. nova, is described from Asian Russia. It differs from the type variety in falcate-secund leaves and slightly shorter hair-points with sharply dentate margins and dorsal surface of hair-points covered with high, dense, branched spinulae. These morphological differences make these taxa quite distinct, though they are not separated from each other by nuclear ITS1-2 DNA marker, contrary to other taxa within Hedwigia. According to the DNA sequence data, Hedwigia mollis is also closely related to H. emodica, but it is better separated and likely deserves species status. It shares some morphological features with both varietes of H. emodica, but differs from both of them by shorter hair-points with sligtly papillose distal portion. Hedwigia emodica var. emodica has a widest distribution area throughout Russia, while H. mollis is mainly Eiuropean species and distribution of H. emodica var. echinata is restricted to the south of Russian Far East and Transbaikalia. РезюмеНа основе интегративного молекулярного и морфологического анализа из азиатской России описан новый вид, Hedwigia kuzenevae sp. nova. Он похож на недавно описанный вид H. czernyadjevae по облику растений, высоко отогнутым краям листа и длинным, сильно шеро-ховатым гиалиновым волоскам, но отличается от него клетками с несколькими папиллами. Клетки с несколькими папиллами и высоко отогнутые края листа свойственны также H. ciliata, но у этого вида гиалиновые волоски менне сильно папиллозные, а листья односторонне обра-щенные. Hedwigia kuzenevae встречается в Забайкалье и Амурской области; единичные местонахождения известны из Якутии и Красноярского края. Вид растет в районах рас-пространения карбонатных пород. Еще один таксон, H. emodica var. echinata var. nova, описан с юго-востока Азиатской России. От типовой разновидности он отличается односторонне обращенными листьями и гиалиновыми волосками с остро пильчатыми краями и с длинными, густыми шипиками на дорсальной поверхности. По морфологическим признакам эти раз-новидности четко различаются, но они не отделяются друг от друга по изученному моле-кулярному маркеру ITS1-2. Согласно данным по этому маркеру, Hedwigia mollis также близка к H. emodica, но лучше от нее отграничена...

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<strong>Phylogenetic reconstructions of the Hedwigiaceae reveal cryptic speciation and hybridisation in <em>Hedwigia</em></strong>

Cited by 24 publications

References 32 publications

Endemism in the moss flora of North America

Endemism in the moss flora of North America

Integrative taxonomy sheds light on an old problem: theUlota crispacomplex (Orthotrichaceae, Musci)

Further comments on the genus Hedwigia (Hedwigiaceae, Bryophyta) in Russia

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